SD2 Final Flashcards
1
Q
If two hosts are separated by four routers how many networks are there? A. 1 B. 4 C. 5 D. Not enough information
A
C. 5
2
Q
f two hosts are separated by four routers how many DIFFERENT frames will be used? A. 1 B. 4 C. 5 D. Not enough information
A
C. 5
3
Q
If two hosts are separated by four routers how many DIFFERENT packets will be used? A. 1 B. 4 C. 5 D. Not enough information
A
A. 1
4
Q
The host part of a subnet ID will always be binary zeroes.
A. True
B. False
C. Not always true
A
A. True
5
Q
Two addresses in the same subnet will always be separated by a router.
A. True
B. False
C. Not always
A
B. False
6
Q
How many bits are required to specify 127 subnets? A. 127 B. 6 C. 7 D. 8
A
C. 7
7
Q
How many bits are required to specify 127 hosts? A. 127 B. 6 C. 7 D. 8
A
D. 8
8
Q
How many hosts can be on a Class A network?
A. 16M
B. 64K
C. 256
A
A. 16M
9
Q
A mask is used to derive the network portion of an IP address.
A. True
B. False
A
B. False
10
Q
What is the broadcast address for 191.0.123.14?
A. 191.255.255.255.255
B. 191.0.255.255
C. 191.0.123.255
A
B. 191.0.255.255
11
Q
192.168.10.0 is a \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_. A. Network ID B. MAC address C. Subnet ID D. Not enough information
A
D. Not enough information
12
Q
The mask 255.255.255.0 can also be denoted as _____________.
A. /3
B. /8
C. /24
A
C. /24
13
Q
What is the subnet id for IP 201.3.3.100, Mask /24?
A. 201.3.0.0
B. 201.3.3.0
C. Not enough information
A
B. 201.3.3.0
14
Q
The network portion of an IP address can be derived even if we don’t know the subnet mask.
A. True
B. False
A
A. True
15
Q
IP address 172.10.0.0 is private address and can be used by any organization.
A. True
B. False
A
B. False
16
Q
In the TCP/IP model, IP packets are encapsulated into frames.
A. True
B. False
C. Not enough information
A
A. True
17
Q
The command “IP 192.168.10.2 255.255.255.0” will set a router’s interface to the specified IP address.
A. True
B. False
A
B. False
18
Q
Which of the following is true.
A. Routers have many more CLI commands than switches.
B. Switches have many more CLI commands than routers.
C. There is about the same number of CLI commands.
A
A. Routers have many more CLI commands than switches.
19
Q
The term for a network that is directly configured to a router is \_\_\_\_\_\_\_\_. A. enabled B. configured C. connected D. none of the above
A
C. connected
20
Q
Assuming we are currently in CONF T mode, how many commands are required to configure an interface to be functionally operational for a given LAN.
A. 2
B. 3
C. 4
A
B. 3
21
Q
Like a switch’s MAC address table, a router’s ARP table cross references MAC address to IP address .
A. true
B. False
A
B. False
22
Q
If a host needs to send a packet to a host on the same subnet (and the same VLAN), the packet will be sent to the gateway router.
A. True
B. False
C. Not enough information
A
B. False
23
Q
When a router receives a packet the first step is to de-encapsulate the packet from the frame. sC. Not enough information
A. True
B. False
A
B. False
24
Q
If two hosts are separated by five routers how many DIFFERENT packets will be used? A. 1 B. 4 C. 5 D. Not enough information
A
A. 1
25
Static routes are added to routing tables via the “IP ROUTE” command.
A. True
B. False
A. True
26
```
What table is used by a router to determine the IP address of a MAC address?
A. MAC Address Table
B. Routing Table
C. ARP table
D. RIP table
E. None of the above
```
C. ARP table
27
```
What command is used to view a router’s routing table?
A. show arp
B. show routes
C. show interfaces routes
D. show ip route
E. None of the above
```
D. show ip route
28
An entry in the routing table denoted as “local” is a connected subnet via the IP ROUTE command.
A. true
B. false
B. false
29
Most routing table entries will be dynamic routes rather than static routes.
A. true
B. false
A. true
30
```
The subnet id includes the (class A, B or C) network id.
A. true
B. false
```
A. true
31
```
The IP address 192.168.10.0 will most likely be a _________.
A. subnet id
B. router address
C. subnet mask
D. none of the above
```
A. subnet id
32
Unlike switches, routers will usually be part of two or more subnets.
A. true
B. false
A. true
33
The connection between two routers is a unique subnet.
A. true
B. false
A. true
34
```
When defining a route we specify the IP address, mask and the _____________________.
A. next hop port number
B. next hop IP address
C. either A or B
D. neither A nor B
```
C. either A or B
35
Dynamic routes provide better security than static routes.
A. true
B. false
B. false
36
Static routes use less bandwidth than dynamic routes.
A. true
B. false
A. true
37
What MUST be true for a static route to be added to the routing table?
A. the interface needs to have an assigned IP address
B. the interface must be in a working state
C. Both A and B
D. The route will always added to the table as long as the command was entered correctly
C. Both A and B
38
```
A routing table has entry A for 192.168.25.0 (/24) and entry B for 192.168.25.0 (/25). If a packet arrives for address 192.168.25.10 which entry will be used?
A. Entry A
B. Entry B
C. Neither entry
D. Both entries
```
B. Entry B
39
```
A routing table has entry A for 192.168.25.0 (/24) and entry B for 192.168.25.0 (/25). If a packet arrives for address 192.168.24.0 which entry will be used?
A. Entry A
B. Entry B
C. Neither entry
D. Both entries
```
C. Neither entry
40
A routing table has entry A for 192.168.25.0 (/24) and entry B for 192.168.25.0 (/25). If a packet arrives for address 192.168.25.250 which entry will be used?
A. Entry A
B. Entry B
C. Neither entry
A. Entry A
41
```
What command is used to create a default route?
A. ip route
B. ip default
C. arp
D. static default
E. None of the above
```
A. ip route
42
To configure inter-VLAN routing the VLANs must be in different subnets.
A. True
B. False
A. True
43
Forwarding data between VLAN's is accomplished at ___________________.
A. layer 2
B. layer 3
C. layer 5
B. layer 3
44
Using 'router on a stick": if we create 4 subinterfaces, how many 'no shutdown' commands must be issued?
A. 0 (the command is never required)
B. 1
C. 4
B. 1
45
What command will display subinterface information?
A. show interfaces
B. show subinterfaces
C. neither A nor B
A. show interfaces
46
```
The command that CREATES a subinterface is:
A. int G0/0/0.99
B. subinterface 99
C. ip subinterface 99
D. none of the above
```
A. int G0/0/0.99
47
```
What command identifies the VLAN for a particular subinterface?
A. interface g0/0/0.99
B. vlan 99
C. encapsulation dot1q 99
D. none of the above
```
C. encapsulation dot1q 99
48
The command “ROUTER RIP” is the first command for configuring RIP on a router.
A. True
B. False
A. True
49
The command “ROUTER OSPF” is the first command for configuring RIP on a router.
A. True
B. False
B. False
50
The name for a group of networks under the control of one entity is:
A. an ISP
B. a Dynamic Gating Routing
C. an Autonomous System
C. an Autonomous System
51
```
Which protocol do most ISPs use to connect to other ISPs?
A. RIPv2
B. OSPF
C. EIGRP
D. BGP
E. None of the above
```
D. BGP
52
One function of a routing protocol is to determine a ‘best path’ when a topology changes.
A. True
B. False
A. True
53
```
Which protocol choose a best path based on bandwidth?
A. RIPv2
B. OSPF
C. EIGRP
D. BGP
E. None of the above
```
D. BGP
54
```
Which protocol is Cisco proprietary?
A. RIPv2
B. OSPF
C. EIGRP
D. BGP
E. None of the above
```
D. BGP
55
```
The term for the field that a router uses to choose a ‘best path is __________.
A. mask
B. next hop
C. interface
D. cost
E. metric
```
E. metric
56
```
The type of OSPF messages routers transmit are called _________.
A. neighbor messags
B. hello messages
C. CDP messages
D. discover messages
```
B. hello messages
57
OSPF can subdivide an organization’s collection of networks into collections caller “areas”.
A. true
B. false
A. true
58
```
A PC is configured as 192.168.10.5. Which command will assign the network of that PC to a Router’s OSPF.
A. NETWORK 192.168.10.5
B. NETWORK 192.168.10.0
C. NETWORK 192.168.10.0 255.255.255.0
D. None of the above
```
D. None of the above
59
```
What is the process-id in example 20-2 in our textbook (page 473)?
A. 0
B. 1
C. 10.0.0.0
D. Not enough information
```
B. 1
60
The most common use of ACL’s is prioritizing packet transfers form a source IP address.
A. true
B. false
B. false
61
ACL’s are associated with both an interface and a direction.
A. true
B. false
A. true
62
```
Given a router with two (2) interfaces, how many possible ACL’s can be assigned?
A. 1
B. 2
C. 4
D. not enough information
```
C. 4
63
ACL’s process packets using best match logic.
A. true
B. false
B. false
64
All access lists have a number from 1-99 or 2000-2699.
A. True
B. False
B. False
65
To filter packets based on the protocol, we ___________.
A. use an extended ACL
B. use a protocol ACL
C. cannot accomplish this with an ACL
A. use an extended ACL
66
```
The ACL command to block a packet is _____________.
A. block
B. deny
C. drop
D. discard
```
B. deny
67
The “PERMIT ALL” subcommand will allow all packets to pass through.
A. true
B. false
B. false
68
```
To allow all packets from 192.168.10.0 we would use:
A. PERMIT 192.168.10.0
B. PERMIT 192.168.10.0 255.255.255.0
C. PERMIT 192.168.10.0 0.0.0.255
D. none of the above
```
C. PERMIT 192.168.10.0 0.0.0.255
69
While Standard Numbered ACL’s only look at source IP addresses, standard named ACL’s will examine both the source and destination addresses.
A. true
B. false
B. false
70
Extended ACL’s will NOT filter based on frame MAC addresses.
A. true
B. false
A. true
71
The command “SHOW ACCESS-LISTS” will display the router’s current ACL’s
A. true
B. false
B. false
72
The command “SHOW RUNNING” does not provide information on ACLs’.
A. true
B. false
B. false
73
“Named” ACL’s is a subset of he valid “standard” ACL’s.
A. True
B. false
A. True
74
In textbook figure 2.7, if we want to filter packets going to S1, which is the BEST router to assign the ACL on?
A. R1
B. R2
C. R3
B. R2
75
In textbook figure 2.7, if we want to filter packets going to S1, which is the BEST port of that router to assign the ACL on?
A. S0/0/0
B. S0/0/1
C. F0/0
C. F0/0
76
Non-routable addresses are useful because
A. They enable IP address reuse
B. They enable automatic assignment of IP addresses
C. They enable translation of host names to IP addresses
D. They are reserved for academic use
A. They enable IP address reuse
77
Network address translation is the method of
A. Allocating IP addresses automatically
B. Mapping IP addresses from one address block to another address block
C. Translating host names to IP addresses
D. Allocating IP address blocks to ISPs
B. Mapping IP addresses from one address block to another address block
78
Network address translation is useful because it enables
A. The automatic allocation of IP addresses
B. The translation of host names to IP addresses
C. IP address reuse
D. The allocation of IP address blocks to ISPs
C. IP address reuse
79
When NAT is used in home networks, RFC 1918 addresses can be reused in neighboring homes
A. True
B. False
A. True
80
Two devices from the same home send connection requests to the same web page. To distinguish between these requests, we can use ___________
A. Source IP and MAC addresses
B. Source IP and port addresses
C. Source IP address and sequence number
D. Require change in initiating sequence number
B. Source IP and port addresses
81
```
Using CIDR route aggregation, about how many routes can be replaced by one route?
A. 32
B. 64
C. 256
D. 65,000
```
D. 65,000
82
Static NAT will manually translate one ip address from a pool of ip addreses.
A. True
B. False
B. False
83
A router configured with NAT needs to keep track of the translated “outside local” IP address.
A. true
B. false
B. false
84
```
In the textbook’s figure 10-2 (page 207) what will the IP address 10.1.1.1 be translated to?
A. 100.2.2.2
B. 170.1.1.1
C. 200.1.1.1
D. none of the above
```
C. 200.1.1.1
85
Another term for ‘private’ address is “inside local”.
A. true
B. false
A. true
86
```
In the textbook’s figure 10-6 (page 212) how many different public addresses are required to support the various private hosts?
A. 2
B. 3
C. 4
D. none of the above
```
B. 3
87
```
Another term for NAT overload is:
A. NATv2
B. NATO
C. NAT+
D. none of the above
```
D. none of the above
88
The command to display the NAT table is:
A. SHOW IP NAT TRANSLATIONS
B. SHOW NAT
C. none of the above
A. SHOW IP NAT TRANSLATIONS
89
The command “IP NAT INSIDE 10.1.1.1” adds a private IP address to the NAT table.
A. true
B. false
B. false
90
Configuring new static entries in the NAT table is done in global config mode.
A. true
B. false
A. true
91
```
Given a router with two (2) interfaces, how many possible ACL’s can be assigned?
A. 1
B. 2
C. 4
D. not enough information
```
C. 4
92
To filter packets based on the protocol, we ___________.
A. use an extended ACL
B. use a protocol ACL
C. cannot accomplish this with an ACL
A. use an extended ACL
93
The command “SHOW ACCESS-LISTS” will display the router’s current ACL’s
A. true
B. false
B. false
94
To create an access list that checks only pings we could use the command "ip access-list standard 21".
A. True
B. False
B. False
95
```
If we wanted to have an access group that filters on FTP packets going INTO an interface, which of these commands would work?
A. ip access-group 7 in
B. ip access-group 7 out
C. either A or B
D. neither A nor B would work
```
D. neither A nor B would work
96
```
An ACL checking packets from a server will use which type of ports?
A. ephemeral
B. static
C. common
D. none of the above
```
C. common
97
Only EXTENDED ACL’s can be named.
A. true
B. false
B. false
98
```
How many steps are involved in the DHCP process to obtain an IP address?
A. 2
B. 3
C. 4
D. none of the above
```
C. 4
99
When a DHCP discover request is sent, it will receive a single offer with an available IP address.
A. true
B. false
B. false
100
One a host sends a “request acceptance” to the server, it has the IP address and other details (ex: DNS server, subnet mask, etc) to proceed.
A. true
B. false
B. false
101
Prior to receiving a DHCP lease, the hosts’ IP address will be 0.0.0.0.
A. True
B. False
A. True
102
```
What is the length of an IPv6 address?
A. 32
B. 64
C. 128
D. none of the above
```
C. 128
103
Migrating to IPV6, ICMP is replaced by ICMP v6.
A. true
B. false
A. true
104
Migrating to IPV6, ARP is replaced by ARP v6.
A. true
B. false
B. false
105
```
What is the first field in an IPV6 packet?
A. source address
B. destination address
C. packet length
D. the hex value 00
E. none of the above
```
E. none of the above
106
```
The IPv6 address 2001:0db8:0000:0000:aaaa:0000:eeee:0001 should be written as
A. 2001:0db8:0:0:aaaa:0:eeee:0001
B. 2001:db8::aaaa:0:eeee:1
C. 2001:db8:0:0:a:0:e:1
D. 2001:db8::a:0:e:1
```
B. 2001:db8::aaaa:0:eeee:1
107
```
According to our textbook (chapter 22) what year saw “pervasive fixed internet”?
A. 1990
B. 1995
C. 1998
D. 2000
```
D. 2000
108
```
According to our textbook (chapter 22) when was the problem of ip address exhaustion first identified?
A. 1980’s
B. 1990’s
C. 2000’s
D. When they took CMPT-307 course
```
A. 1980’s
109
What is the first field of an IPv6 address?
A. the network
B. the version number
C. the global routing prefix
C. the global routing prefix
110
The same network topology – same number of VLANs and point-to-point links, which protocol will require LESS subnets?
A. IPv4
B. IPv6
C. neither
C. neither
111
Both ipv4 and ipv6 use network “classes”.
A. true
B. false
B. false
112
What do IPv6 local unicast addresses begin with?
A. 10, 172, or 192
B. the HEX equivalent of 10, 172 or 192
C. none of the above
C. none of the above
